SN74ALS844DWR

Buffers, Drivers, Receivers, Transceivers Overview

The SN74ALS844DWR is an octal bus driver from Texas Instruments' ALS logic family, housed in a 20-pin SOIC package. It features non-inverting outputs with three-state capability and TTL-compatible inputs. The device operates within a supply voltage range of 4.5 V to 5.5 V. Key electrical characteristics include a low-level output current of 24 mA and a high-level output current of -15 mA. Propagation delay is specified at 10 ns. It functions within a temperature range of 0°C to +70°C.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Provides eight-bit data buffering with three-state output control for efficient bus management
• Features TTL-compatible input levels ensuring direct interface with standard logic systems
• Delivers high drive capability suitable for driving multiple loads on shared data buses

Buffers, Drivers, Receivers, Transceivers Applications

• Memory address buffering in computer systems
• Clock distribution networks requiring signal isolation
• Bidirectional data bus transceivers when paired with direction control logic

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific suffix 'DWR' corresponds to the tape-and-reel packaging format required for automated assembly processes. Confirm that the ALS series designation aligns with the intended power consumption and speed requirements of the target design. Ensure compatibility with existing 5V logic families before finalizing component selection for production runs.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when designing systems requiring high-speed octal buffering with minimal propagation delay. The ALS series offers a balance between speed and power dissipation compared to standard TTL or LS variants. Consider the three-state feature for implementing multi-drop bus architectures where multiple devices share common data lines without interference.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the SN74ALS family of advanced small-scale integration logic devices. These components are designed to replace older TTL standards while offering improved performance metrics. The SN74ALS844 specifically serves as a buffer, distinct from latches or transceivers found in other members of the same logical family.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

Compatible substitutes include the SN74ALS244DWR for non-inverting applications and the SN74ALS240DWR for inverting configurations. Verify pinout compatibility and electrical specifications against these alternatives to ensure seamless integration into existing circuit designs without modification.